Help Knocking coming from under the car - Page 2 - MyG37

Go Back  MyG37 > Tech Area > General Tech Questions
Reload this Page >

Help Knocking coming from under the car

Notices
General Tech Questions Scheduled maintenance, Tune-ups Oil changes, service bulletins and other FAQs for the G37

Help Knocking coming from under the car

Reply

 
 
 
Old 03-10-2018, 10:21 PM
  #16  
Flakman
Registered User
Thread Starter
 
Flakman's Avatar
 
Join Date: Jan 2015
Location: California, USA
Posts: 608
Thanked 81 Times in 69 Posts
Finally got a guy to look at the car. Could not find anything wrong with bearings or CV/halfshafts. Luckily he doesn't charge for road test and troubleshooting that doesn't require tearing anything apart. He says it doesn't seem like anything that is gonna cause problems, but now back to square one.
Flakman is offline  
Reply With Quote
Old 03-13-2018, 01:57 AM
  #17  
Flakman
Registered User
Thread Starter
 
Flakman's Avatar
 
Join Date: Jan 2015
Location: California, USA
Posts: 608
Thanked 81 Times in 69 Posts
Okay, here's a video with audio of the clunk/knock. You'll have to turn up the volume, but you'll here the non-rhythmic clunking.


Thanks
Flakman is offline  
Reply With Quote
Old 03-13-2018, 03:07 PM
  #18  
RMB5190
Registered User
iTrader: (2)
 
Join Date: Dec 2016
Location: Maryland
Posts: 1,785
Thanked 212 Times in 192 Posts
I got nothing. Sorry :/
RMB5190 is offline  
Reply With Quote
Old 03-13-2018, 05:51 PM
  #19  
Hashim
Registered User
iTrader: (2)
 
Hashim's Avatar
 
Join Date: Oct 2014
Location: Toronto
Posts: 787
Thanked 117 Times in 101 Posts
I thought it kinda sounded like an unbalanced wheel...but really that's just a wild guess...Op can you identify where on the car the sound is coming from?...in the video its really not apparent...
Hashim is offline  
Reply With Quote
Old 03-14-2018, 12:52 AM
  #20  
Flakman
Registered User
Thread Starter
 
Flakman's Avatar
 
Join Date: Jan 2015
Location: California, USA
Posts: 608
Thanked 81 Times in 69 Posts
It really aounds like the left front. I wish I could mount the phone outside the car. Will have to think about that.
Flakman is offline  
Reply With Quote
Old 03-14-2018, 08:31 AM
  #21  
Hashim
Registered User
iTrader: (2)
 
Hashim's Avatar
 
Join Date: Oct 2014
Location: Toronto
Posts: 787
Thanked 117 Times in 101 Posts
Originally Posted by Flakman View Post
It really aounds like the left front. I wish I could mount the phone outside the car. Will have to think about that.
in the off chance it is an unbalanced wheel, any sign that you lost a wheel weight on the left front tire? (i.e. clean spot where a weight used to be?)

could also be an endlink broken or swaybar bushing that needs grease causing the swaybar to clunk or bad tierod
Hashim is offline  
Reply With Quote
Old 05-21-2018, 08:09 AM
  #22  
vdpinc01
Registered User
 
vdpinc01's Avatar
 
Join Date: Jan 2016
Location: Houston, TX
Posts: 49
Thanked 1 Time in 1 Post
Originally Posted by Flakman View Post
It really aounds like the left front. I wish I could mount the phone outside the car. Will have to think about that.
Where you ever able to find out what it was making the knocking sound?
I just started hearing the same exact noise last night and it sounded like it was coming from the front pass. side of my car. I'm also hoping it something easy to moderately priced. But please let us know the outcome.

09 G37S coupe - 20" wheels
vdpinc01 is offline  
Reply With Quote
Old 05-21-2018, 11:00 AM
  #23  
slartibartfast
Super Moderator
iTrader: (6)
 
Join Date: Oct 2014
Location: Houston, Tx
Posts: 3,891
Thanked 420 Times in 376 Posts
Sounds wheel-related to me. Are all the lug nuts tight?
slartibartfast is offline  
Reply With Quote
Old 06-05-2018, 08:16 PM
  #24  
Fubz3829
Registered User
 
Fubz3829's Avatar
 
Join Date: Aug 2017
Location: St. Louis MO
Posts: 11
Thanked 1 Time in 1 Post
I replaced both the front driver and passenger side bearings(went with Timken), and all is well. No sounds, no vibrations, no nothin. It's not difficult to do assuming you have the right tools and done it before. Got them both done in one evening taking my time with dinner and beer breaks! lol
Fubz3829 is offline  
Reply With Quote
Old 06-05-2018, 08:29 PM
  #25  
Fubz3829
Registered User
 
Fubz3829's Avatar
 
Join Date: Aug 2017
Location: St. Louis MO
Posts: 11
Thanked 1 Time in 1 Post
By the way, I was only getting sounds from the driver side like you. You may or may not have a bad bearing like I did. If you do determine it is bad or just feel like replacing it to rule out the bearing, you don't necessarily have to replace both of them. However most would recommend it. Do you take turns and corners hard?
Fubz3829 is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Chief_McGrass
Engine, Drivetrain & Forced-Induction
0
08-28-2017 03:01 PM
MurdaManolo
Intake and Exhaust
2
07-01-2014 12:04 PM
retrojay2345
Engine, Drivetrain & Forced-Induction
9
10-21-2010 02:32 AM


Thread Tools
Search this Thread
Quick Reply: Help Knocking coming from under the car


Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.